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Date:      Thu, 26 Mar 1998 02:44:46 -0500 (EST)
From:      "John S. Dyson" <dyson@FreeBSD.ORG>
To:        HARAWAT.IN.oracle.com.ofcmail@in.oracle.com (HARAWAT.IN.ORACLE.COM)
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: 4 MB pagesize
Message-ID:  <199803260744.CAA01023@dyson.iquest.net>
In-Reply-To: <199803260641.BAA14128@dwarpal.in.oracle.com> from "HARAWAT.IN.ORACLE.COM" at "Mar 26, 98 10:26:34 am"

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HARAWAT.IN.ORACLE.COM said:
>
> 	Is anyone planning to impleement 4 MB pages in FreeBSD like solaris 
> 2.6 does . 
>  
FreeBSD does in -current (and has for quite a while.)  However, those
pages are used for the kernel and device buffers (like video mem.)  I
do know that certain applications can gain from pre-allocated memory
regions that are mapped by 4MB pages.  If you have any info on the
actual performance gains, it would be useful.  I would certainly
be willing to implement it, if it ends up giving any reasonable
improvement.

-- 
John                  | Never try to teach a pig to sing,
dyson@freebsd.org     | it just makes you look stupid,
jdyson@nc.com         | and it irritates the pig.

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